Data coding method, data decoding method, data compression appar

Details Data coding method, data decoding method, data compression appar Data coding method, data decoding method, data compression appar

1996-10-17

1998-12-01

Gaffin, Jeffrey A.

Coded data generation or conversion

Digital code to digital code converters

Adaptive coding

341 59, 341 65, 341 63, 341 87, H03M 734

Patent

active

058445080

ABSTRACT:
A data compression and decompression apparatus and method providing a high compression ratio. The data compressing apparatus includes, for example, an obtaining section, a first coding section, a first controlling section, a judging section, a second coding section, and a second controlling section. Characters are obtained one after another from a compression target. A code is then output corresponding to the character when the character and a predetermined number of characters are not identical. Subsequently, the number of characters obtained are counted when the character and the predetermined number of characters are identical, and a code corresponding to the number of characters counted is output when the character obtained is not identical with the predetermined number of characters.

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The New IEEE Standard Dictionary of Electrical and Electronics Terms, 5th Ed. C.J. Booth, Editor, ISBN 1-55937-240-0, p. 1158, Sep. 17, 1992.

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